John Dalton

William Crookes

J.J Thomson

Ernest Rutherford

Proton

Neutron

Electron

Fact on Isotope

An a- particles has?

A B- particle has?

Dmitri Mendeleev

Henry Moseley

How many periods are there on the periodic table of elements?

How many groups are there on the periodic table?

Metal properties (hint 6)

Non-metal properties (hint 5)

Iron Triad

Coinage metals

Lanthanides

Actinides